* Large capacity: Massive capacity has been achieved through the development of head, media, signal processing technology, servo technology*1 as an element technology allowing up to to 11Gb/cm2 (75Gb/in 2) high density and up to 75GB*2 per disk, 300GB*2 per drive (4 disks) high capacity. * High Performance: Read Ahead Cache *3 and Write Reordering Cache *4 enable the drives to execute read and write operation in high speed. * High Reliability: On the fly ECC (Error Correction Code) and S.M.A.R.T *5 function enable the drives to improve the data reliability. * Silence: FDB spindle motor is incorporated for silent operation